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Operation control method and system of electrically erasable programmable read-only memory (EEprom)

A read-only memory and memory system technology, applied in the storage field, can solve problems such as no solution, and achieve the effects of reducing demand, prolonging life, and improving performance

Active Publication Date: 2013-07-10
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For the above-mentioned problems that arise, there is currently no good solution

Method used

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  • Operation control method and system of electrically erasable programmable read-only memory (EEprom)
  • Operation control method and system of electrically erasable programmable read-only memory (EEprom)

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Embodiment Construction

[0032] In order to make the purpose, technical solution and beneficial effect of the invention clearer, the specific implementation manner of the invention will be described in detail below in conjunction with the accompanying drawings. The present invention proposes a register based on the data and address of EEprom's page erasing operation as a temporary high-speed buffer memory cache, and merges multiple operations of writing EEprom in a transaction flow into one or several page operations as much as possible In this way, the number of frequent writing to EEprom can be reduced, and the efficiency of the Java card can be further improved.

[0033] system introduction:

[0034] ROM: Read-only memory, used to store fixed data such as programs and algorithms.

[0035] RAM: Dynamic memory used for temporary storage of data.

[0036] CPU: is a digital processing system.

[0037] EEC: It is the external controller of EEprom.

[0038] The CL signal is to control the clearing si...

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PUM

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Abstract

The invention discloses an operation control method and an operation control system of an EEprom. At present, when an intelligent card (especially a java card) is applied, during the transaction process, data is saved in the EEprom according to clearance, and aims at the defects in the prior art, in order to prolong the service life of the EEprom, improve the performance of the EEprom, reduce the requirement on random access memory (RAM), and fully use a data register in the EEprom in page operation, the invention provides a simplified solution, a function (of supporting the intermittently loading in the page operation) is added through the EEprom, so that the requirement is achieved.

Description

technical field [0001] The invention relates to the field of storage, in particular to an operation control method, circuit and system of EEprom. Background technique [0002] At present, in the application of smart cards (especially in java cards), data needs to be stored in EEprom (Electrically Erasable Programmable Read-Only Memory) according to the gap during the transaction process. [0003] For the traditional Java card, EEprom will be written once for each assignment operation to the object field and array field (non-transient state) in the applet process, and in order to ensure the originality, a transaction will be started and submitted every time. In this way, in the frequent assignment of objects, the performance will be greatly reduced, and the frequent startup of transactions will greatly reduce the life of the electrically erasable programmable read-only memory EEprom. [0004] At present, for the above-mentioned commonly used solutions, some data that needs t...

Claims

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Application Information

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IPC IPC(8): G06F13/16
Inventor 石道林
Owner NATIONZ TECH INC